1 Possible Test Questions Unit 10 TECTONIC
... 27. What is the significance of the oldest ocean sediments being younger than many surface rocks? Plate Tectonics and Continental Drift 28. Why is it that we no longer use the term “continental drift”? Lithospheric Plates 29. Describe the various crusts that makeup the North American plate (hint – o ...
... 27. What is the significance of the oldest ocean sediments being younger than many surface rocks? Plate Tectonics and Continental Drift 28. Why is it that we no longer use the term “continental drift”? Lithospheric Plates 29. Describe the various crusts that makeup the North American plate (hint – o ...
Chapter 7, Section 1 Directed Reading A
... 4. List the three layers of the Earth, based on their chemical composition. A. B. C. 5. Complete Sentence - What three elements make up most of the Earth’s crust? _______________________________________________________________ _______________________________________________________________ _________ ...
... 4. List the three layers of the Earth, based on their chemical composition. A. B. C. 5. Complete Sentence - What three elements make up most of the Earth’s crust? _______________________________________________________________ _______________________________________________________________ _________ ...
Forces Shaping Earth Webquest
... 6. What are the two basic types of plates? 7. Of the two basic types of plates, which one tends to subduct (sink) under the other one? ...
... 6. What are the two basic types of plates? 7. Of the two basic types of plates, which one tends to subduct (sink) under the other one? ...
8.9A the historical development of evidence that supports plate
... › Hess proposed that hot, less dense material below Earth’s crust rises toward the surface at the mid-ocean ridges. › Then, it flows sideways, carrying the seafloor away from the ridge in both directions. ...
... › Hess proposed that hot, less dense material below Earth’s crust rises toward the surface at the mid-ocean ridges. › Then, it flows sideways, carrying the seafloor away from the ridge in both directions. ...
Warm-Up # 56 Seafloor spreading - East Hanover Township School
... B. Evidence that tectonic plates are being created at divergent boundaries is that younger _______ rocks are found at the mid-ocean ridges and older ______________rocks are found further away. ...
... B. Evidence that tectonic plates are being created at divergent boundaries is that younger _______ rocks are found at the mid-ocean ridges and older ______________rocks are found further away. ...
Continental Drift
... needle” record of the magnetic field at that time – Every few million years or so, a magnetic reversal occurs, where Earth’s magnetic field “flip-flops” (so that our compasses would instead point SOUTH) – The new rocks suddenly crystallize with an opposite “compass needle” alignment (called “reverse ...
... needle” record of the magnetic field at that time – Every few million years or so, a magnetic reversal occurs, where Earth’s magnetic field “flip-flops” (so that our compasses would instead point SOUTH) – The new rocks suddenly crystallize with an opposite “compass needle” alignment (called “reverse ...
Continental Drift and Plate Tectonics
... describe mantle heat flow in terms of convection. Deep materials, hotter than their surroundings (and hence buoyant), would tend to flow upward. In approaching the cool surface of the Earth, the material would lose its thermal energy, cool and sink, having lost buoyancy. The motion of mantle materia ...
... describe mantle heat flow in terms of convection. Deep materials, hotter than their surroundings (and hence buoyant), would tend to flow upward. In approaching the cool surface of the Earth, the material would lose its thermal energy, cool and sink, having lost buoyancy. The motion of mantle materia ...
1. Continental drift? What evidence did Alfred Wagner use to
... theory of? He thought that continents were an only piece of land but then they were separated. 2. Why do you think people didn't believe continental drift theory when Wagner first explained it? Because he didn’t prove why continents were separated. 3. Who were the two scientists that brought forth s ...
... theory of? He thought that continents were an only piece of land but then they were separated. 2. Why do you think people didn't believe continental drift theory when Wagner first explained it? Because he didn’t prove why continents were separated. 3. Who were the two scientists that brought forth s ...
Introduction to Structural Geology
... -carries heat transferred from core & from radioactive decay w/in mantle to surface Heat escapes earth by: - Conduction through cold lithospheric boundary layer - Advection of heat in magmas - Upwelling of asthenosphere at oceanic spreading centers 1.4 The Earth’s crust and plate tectonics: Introduc ...
... -carries heat transferred from core & from radioactive decay w/in mantle to surface Heat escapes earth by: - Conduction through cold lithospheric boundary layer - Advection of heat in magmas - Upwelling of asthenosphere at oceanic spreading centers 1.4 The Earth’s crust and plate tectonics: Introduc ...
Plate Tectonics
... • What is a tectonic plate? • What was Pangea? • What is Sea-Floor spreading? • Name the three different types of plate boundaries and one location on Earth for each one ...
... • What is a tectonic plate? • What was Pangea? • What is Sea-Floor spreading? • Name the three different types of plate boundaries and one location on Earth for each one ...
Plate Boundaries
... • Forms volcanoes • Mid-oceanic ridge formation • Earthquakes • Causes sea-floor spreading ...
... • Forms volcanoes • Mid-oceanic ridge formation • Earthquakes • Causes sea-floor spreading ...
PP5-AbbeyNaji - Stout Middle School
... The difference between oceanic crust and the oceanic lithosphere is the oceanic crust is found on the ocean floor and the oceanic lithosphere is deeper into Earth. ...
... The difference between oceanic crust and the oceanic lithosphere is the oceanic crust is found on the ocean floor and the oceanic lithosphere is deeper into Earth. ...
Name Period ______ Date ______ Earth Science: National
... 3. The lighter elements, including ______________ and _______________ rise towards the surface and erupt in volcanoes as molten rock. 4. Most scientists believe that the water that formed our oceans came from many, many ________________ , which contained water. 5. How old was Earth believed to be wh ...
... 3. The lighter elements, including ______________ and _______________ rise towards the surface and erupt in volcanoes as molten rock. 4. Most scientists believe that the water that formed our oceans came from many, many ________________ , which contained water. 5. How old was Earth believed to be wh ...
Plate Tectonics Activity on Dynamic Earth
... -Watch the video, look at “Plate Tectonics 101” for more information 1. When did the supercontinent begin to separate? 2. What is a tectonic plate? What percentage of Earth’s radius do they make up? 3. Why do plates move? (two part answer) 4. Do all plates move at the same speed? How fast and in whi ...
... -Watch the video, look at “Plate Tectonics 101” for more information 1. When did the supercontinent begin to separate? 2. What is a tectonic plate? What percentage of Earth’s radius do they make up? 3. Why do plates move? (two part answer) 4. Do all plates move at the same speed? How fast and in whi ...
FORCES ON EARTH - Flipped Out Science with Mrs. Thomas!
... When plates are spreading apart from one another there is a lot of geological activity. Earthquakes and volcanoes occur here. •In some places like in East Africa, a rift valley can form that is hundreds of feet deep. ...
... When plates are spreading apart from one another there is a lot of geological activity. Earthquakes and volcanoes occur here. •In some places like in East Africa, a rift valley can form that is hundreds of feet deep. ...
Plates on the Move
... insight to the mechanism for how the continents moved. • The magma which pushes up at the mid-ocean ridge provides the new land pushing the plates, and the subduction zones gobble up the land on the the other side of the plates. The mechanism was convection currents! ...
... insight to the mechanism for how the continents moved. • The magma which pushes up at the mid-ocean ridge provides the new land pushing the plates, and the subduction zones gobble up the land on the the other side of the plates. The mechanism was convection currents! ...
File
... 19. Why does the earth's picture change 20. The plates that cover the earth are between how may kilometers thick? 21. In a convection current, ___________ material rises, while ____________ material sinks 22. What happens when a hot spot stays put but the plate above it keeps moving 23. What might h ...
... 19. Why does the earth's picture change 20. The plates that cover the earth are between how may kilometers thick? 21. In a convection current, ___________ material rises, while ____________ material sinks 22. What happens when a hot spot stays put but the plate above it keeps moving 23. What might h ...
Newid tectoneg 1
... the lithosphere which behaves as if it were part of the crust. The thickness of the lithosphere shows considerable variability and its lower boundary is gradational and shows no sharp change. Underneath the lithosphere is the asthenosphere, where the plastic like properties of the rocks permits them ...
... the lithosphere which behaves as if it were part of the crust. The thickness of the lithosphere shows considerable variability and its lower boundary is gradational and shows no sharp change. Underneath the lithosphere is the asthenosphere, where the plastic like properties of the rocks permits them ...
C4 sciencespot.net center
... 11. Where on the Earth is there a “real-life” example of this collision? ______________ ______________________________________________________________________ 12. List five facts about what happens at CONVERGENT boundaries: ...
... 11. Where on the Earth is there a “real-life” example of this collision? ______________ ______________________________________________________________________ 12. List five facts about what happens at CONVERGENT boundaries: ...
Name________________________________ #____
... 17. What is the rate of plate separation in the Atlantic Ocean? ______________________________________ ________________________________________________________________________________________ 18. What is the most famous TRANSFORM boundary in the world? _________________________________ _____________ ...
... 17. What is the rate of plate separation in the Atlantic Ocean? ______________________________________ ________________________________________________________________________________________ 18. What is the most famous TRANSFORM boundary in the world? _________________________________ _____________ ...
Plate Tectonics Reading
... Geologists have hypothesized that the outer 60-100 km of the Earth are composed of approximately seven principal slabs of rigid lithospheric (rock) material. These slabs, known as plates, account for most of the dynamic features of the crust of the Earth. These include earthquakes, mountain chain bu ...
... Geologists have hypothesized that the outer 60-100 km of the Earth are composed of approximately seven principal slabs of rigid lithospheric (rock) material. These slabs, known as plates, account for most of the dynamic features of the crust of the Earth. These include earthquakes, mountain chain bu ...
Volcanoes and Igneous Activity Earth
... • Several plates include an entire continent plus a large area of seafloor ...
... • Several plates include an entire continent plus a large area of seafloor ...
The Changing Face of the Planet new ppt
... separating the crust from the mantle Lithosphere Topmost solid part of the Earth Composed of the crust and part of the upper mantle Broken into large sections called plates ...
... separating the crust from the mantle Lithosphere Topmost solid part of the Earth Composed of the crust and part of the upper mantle Broken into large sections called plates ...
Unit 3:Tectonic Processes
... thinnest on the ocean floors Sial (i.e. light granitic rock): major component of the continents Sima (i.e. dense basaltic rock): major component of the ocean basins ...
... thinnest on the ocean floors Sial (i.e. light granitic rock): major component of the continents Sima (i.e. dense basaltic rock): major component of the ocean basins ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.